No, COVID-19 has not busted the fundamental rules of investing

And neither has GameStop. A look back at 2020 tells everything you need to know

The latest newsletter from the passive investing gurus at Rebalance contains the striking (gulp!) chart above depicting the stock market’s gyrations last year. Readers will remember Rebalance founder Mitch Tuchman from this 2019 podcast.

This chart caught my eye partly because of the GameStop frenzy. The financial press has gone crazy for this story, and…